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Abstract

Records of 1,289 cows at first calving with different proportions of Bos indicus and Bos taurus genes (Charolais, Brown Swiss, Simmental, Holstein Friesian, Salers) were analyzed. The cows were both purebreds and crossbreds from a commercial herd born between 1966 and 2006. They were used to...

Author(s)
Toledo Alvarado, H. O.; Berruecos Villalobos, J. M.; Vázquez Peláez, C. G.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2015, 6, 1, pp 1-13
Abstract

Background: The Zebu cattle are represented by a diverse group of breeds in México. Traditionally these breeds have been associated with the tough beef characteristic. Validated genetic markers have the potential to be included in marker-assisted selection and management programs in order to...

Author(s)
Parra-Bracamonte, G. M.; Martínez-González, J. C.; Sifuentes-Rincón, A. M.; Moreno-Medina, V. R.; Ortega-Rivas, E.
Publisher
Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
Citation
Electronic Journal of Biotechnology, 2015, 18, 5, pp 365-367
Abstract

In México, there are no studies whose purpose has been characterizing the production units with registered cattle herds. These studies are important because they allow designing successful genetic improvement programs and the transfer of their results to commercial producers. The objective of this...

Author(s)
Larios-Sarabia, N.; Ramírez-Valverde, R.; Núñez-Domínguez, R.; García-Muñiz, J. G.; Ruíz-Flores, A.
Publisher
Agricultura, Sociedad y Desarrollo, Montecillo, Mexico
Citation
Agricultura, Sociedad y Desarrollo, 2011, 8, 2, pp 229-247
Abstract

The objective of this study was to determine the physiological, endocrine and productive response in lactating dairy cows under several series of artificial cooling at the beginning of the summer (June to July, 2011). Fourteen multiparous Holstein cows were assigned in one of two treatments:...

Author(s)
Leyva-Corona, J. C.; Thomas, M. G.; Rincón, G.; Medrano, J. F.; Calderón, A. C.; Avendaño-Reyes, L.; Hallford, D. M.; Rivera-Acuña, F.; Luna-Nevárez, P.
Publisher
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Mexico City, Mexico
Citation
Revista Mexicana de Ciencias Pecuarias, 2016, 7, 4, pp 415-429
Abstract

The objective of this study was to characterize and compare predicted transmitted abilities of Brown Swiss and Jersey cattle used in Mexico (MX), and those obtained in the United States (US) and Canada (CA). The database used in this study came from imported American and Canadian Brown Swiss and...

Author(s)
Ramírez-Valverde, R.; Núñez-Domínguez, R.; Palacios-Jiménez, A. L.; Jiménez-Carrasco, J. S.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2014, 167, pp 51-57
Abstract

Production and reproduction data of cows with 50 or 75% Holstein genes kept under a dual purpose system in Yucatan, Mexico were analyzed. The work consisted of a retrospective study type using 222 lactations (n=75 cows) located at the center of Yucatán. The traits evaluated were calving interval...

Author(s)
Magaña Monforte, J. G.; López, E. L.; Segura Correa, J. C.; AkéLópez, J. R.; Montes Pérez, R. C.; Aguilar Pérez, C. F.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2016, 28, 9, pp Article 156
Abstract

The aim of this study was to evaluate the adoption of technologies and organizational practices in the areas of Management, Feeding and Reproduction in dual-purpose cattle of the Mexican tropic territory. This study gathered a sample of 1650 farms of small size. The farms were divided in categories ...

Author(s)
Rangel, J.; Espinosa, J. A.; Pablos-Heredero, C. de; Barba, C.; Velez, A.; Rivas, J.; García, A.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2017, 27, 1, pp 44-55
Abstract

Copy number variations (CNVs) are an important source of genomic structural variation, and can be used as markers to investigate phenotypic and economic traits. CNVs also have functional effects on gene expression and can contribute to disease susceptibility in mammals. Currently, single nucleotide ...

Author(s)
Salomón-Torres, R.; González-Vizcarra, V. M.; Medina-Basulto, G. E.; Montaño-Gómez, M. F.; Mahadevan, P.; Yaurima-Basaldúa, V. H.; Villa-Angulo, C.; Villa-Angulo, R.
Publisher
FUNPEC, Brazil
Citation
Genetics and Molecular Research, 2015, 14, 4, pp 11848-11859
AbstractFull Text

Cow genotype effect was evaluated in energy efficiency of weaning production (EEWP), on three cow groups: 15 Brahman (Bos indicus) and 44 crossed cows (B. taurus × B. indicus) (11 Charolais × Brahman and 33 Brown Swiss × Brahman), breeding Brahman sire calves, under grazing extensive conditions in...

Author(s)
Cárdenas, M. J. V.; Kú, V. J. C.; Magaña, M. J. G.
Publisher
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Citation
Archivos de Zootecnia, 2015, 64, 246, pp 117-122
Abstract

The aim of this study was to estimate genetic parameters for growth traits in Mexican Nellore cattle. A univariate animal model was used to estimate (co)variance components and genetic parameters. The traits evaluated were birth weight (BW), weaning weight (WW), and yearling weight (YW). Models...

Author(s)
Martínez-González, J. C.; García-Esquivel, F. J.; Parra-Bracamonte, G. M.; Castillo-Juárez, H.; Cienfuegos-Rivas, E. G.
Publisher
Springer, Amsterdam, The Netherlands
Citation
Tropical Animal Health and Production, 2010, 42, 5, pp 887-892

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